Does anyone else here remember Elite , the classic old videogame from the early '80s? That was an incredible piece of work for its time, in many ways a Rogue Trader simulation game.
For those that don't know the game, it was years ahead of its time: a 3D wireframe simulator running on utterly antiquated hardware (by today's standards) that nevertheless managed to fit in (in 40k terms) dozens of Sectors worth of planets, about twenty different types of vessels, a ton of cool weapon upgrades, alien races and a robust (if simplistic) trading system that enabled you to travel around the galaxy profiting from supply/demand variations.
It was arguably the first true "sandbox" game like Grand theft auto, a game that just dropped you into a galaxy and gave you a choice as to how you wanted to play it. You could be a peaceful trader running from trouble , a miner scooping plasma from the surface of suns or a pirate, blasting other ships to pieces and stealing their stuff.
I fondly remember that game, having spent many hours on my crappy BBC Model B grinding my way to the lofty rank of "competent."
It's one of only about ten games ever produced to (retrospectively) get a "perfect" 10/10 rating from Edge Magazine, which puts it up there with things like Halo, Halo 3, Mario galaxies, Legend of Zelda:Ocarina of time etc etc.
The reason I mention it here is partly to reminisce, but also to idly wonder if there's any way to steal some of its trading mechanics for Rogue Trader. Elite used (for the time) incredibly advanced random number generation sequences to produce a standard list of 30-50 products (furs, luxury foodstuffs, iron, etc) for every planet you visited. You could then buy items at the price stated and fly to another world to sell them on, hopefully at a profit.
So, for example, if you used this system in 40k, and were a peaceful Rogue Trader wandering around the Calixis Sector, you could buy ore at 15 thrones a tonne at Sephiris Secundus, and sell it at 50 thrones a tonne at the Lathes.
Just a thought! I'm sure the endeavours system is more sophisticated than this, but it could be used as a back up mechanic for "milk run" trading missions...